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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 16 | if ( dirname($schema . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']) != get_settings('siteurl') ) |
| 17 | update_option('siteurl', dirname($schema . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']) ); |
| 18 | } |
| 19 | |
| 20 | switch($action) { |
| 21 | |
| 22 | case 'logout': |
| 23 | |
| 24 | wp_clearcookie(); |
| 25 | do_action('wp_logout'); |
| 26 | nocache_headers(); |
| 27 | |
| 28 | $redirect_to = 'wp-login.php'; |
| 29 | if ( isset($_REQUEST['redirect_to']) ) |
| 30 | $redirect_to = preg_replace('|[^a-z0-9-~+_.?#=&;,/:]|i', '', $_REQUEST['redirect_to']); |
| 31 | |
| 32 | wp_redirect($redirect_to); |
| 33 | exit(); |
| 34 | |